[PATCH v2] malloc: Simplify tst-free-errno munmap failure test

[Florian Weimer]

* Arjun Shankar:

> +     On Linux, the default VMA count limit is 65536 although many systems
> +     might override this.  For this test, irrespective of the system, we
> +     try to create up to 65536 mappings in order to attempt to hit the
> +     limit.  */
> +  {

I think this { is no longer needed?

Rest looks good.

Thanks,
Florian